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Best Licensed Insulation Contractors in Pleasanton, CA

4 insulation companies registered in Pleasanton hold current CSLB licenses, verified against official records as of August 17, 2026. All 4 are listed below, ordered by years licensed.

How we chose: We identified 4 companies registered in Pleasanton. 4 passed license verification. All 4 are listed below. Our methodology

We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.

  1. 1.Insulation Specialties Inc.

    ✓ CSLB License #464164 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1984
    Phone
    (925) 846-7990

  2. 2.Accurate Firestop & Insulation

    ✓ CSLB License #710044 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1995
    Phone
    (925) 701-8600

  3. 3.Service Champions

    ✓ CSLB License #817040 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2003
    Phone
    (925) 444-4444

  4. 4.Crawlspace Clean & Insulation Incorporated

    ✓ CSLB License #1063093 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2020
    Phone
    (925) 858-6484

Compare the top 4 at a glance

CompanyLicenseWorkers' compLicensed since
Insulation Specialties Inc.#464164On file1984
Accurate Firestop & Insulation#710044On file1995
Service Champions#817040On file2003
Crawlspace Clean & Insulation Incorporated#1063093On file2020

Alameda County insulation licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 65 active C-2 insulation and acoustical licenses in Alameda County, 4 of them registered in Pleasanton. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Pleasanton license has been held 23 years, and the longest-standing one dates to 1984. California law requires workers' compensation cover for C-2 licensees, so it is a legal baseline rather than a way to tell two contractors apart: 4 of Pleasanton's 4 licenses (100.0%) carry a current policy in CSLB's file, and we do not rank on it. The contractor bond is not a signal here: 65 of the county's 65 licenses carry the same $25,000 bond California sets by statute. 6 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.

Insulation Contractors in Pleasanton: common questions

How many licensed insulation contractors are there in Pleasanton?

4 active C-2 insulation and acoustical licenses are registered in Pleasanton, out of 65 across Alameda County. 4 Pleasanton-registered companies passed our license verification, and all 4 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.

Does California license insulation contractors?

Yes. California licenses contractors by classification, and C-2 is the CSLB classification that authorises this work. 4 active C-2 insulation and acoustical licenses are registered in Pleasanton and 65 across Alameda County, the longest-standing issued in 1984. Only CLEAR, unexpired licenses appear here.

How do I check an insulation contractor's license in California?

Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which California requires of C-2 licensees and 4 of Pleasanton's 4 currently carry. 6 Alameda County licenses expire within 90 days.

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